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          课后作业
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        October 12, 2020
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        作业6
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      控制器、运算器、存储器、输入设备、输出设备 24 CPU包括算术逻辑单元，寄存器，控制器，内部总线四个部分； 包括 二级存储（secondary storage，auxiliary storage）是计算机主存储器或内存之外的所有可访问数据存储器，是程序和数据长期保存的地方，常见的二级存储设备有（固定/移动）硬盘、光盘、等   CPU：Central processing unit (CPU), as the core of computing and control of computer system, is the final execution unit of information processing and program running. RAM: Random access memory (RAM), also known as main memory, is an internal memory that directly exchanges data with the CPU. ROM: Read only memory (ROM) works in a non-destructive read-out mode, which can only read but not write information.
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        October 2, 2020
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        项目2-零基础游戏设计与制作
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      游戏链接：https://www.construct.net/en/free-online-games/free-game-18137/play
水平有限，本来打算将整个迷宫分成12个场景的，但场景转换弄了好久也没弄好，只能全凑一起了，所以有些边会粗一些。

迷宫来自网络
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        October 1, 2020
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        作业5
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      Give the three representations of an AND gate and say in your words what AND means.
 X = AB AND 是指AB同时为1时结果为1，否则为0 符号：    Give the three representations of an XOR gate and say in your words what XOR means.
 X = A ⊕ B XOR是指AB不同时为1，相同时为0 符号：    Draw a circuit diagram corresponding to the following Boolean expression:   Show the behavior of the following circuit with a truth table:   What is circuit equivalence?
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